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In a survey conducted among 60 managers, it was found that 25 read Business India, 30 read Business World and 24 read Business Today; 10 read both Business India and Business World, 9 read both Business India and Business Today and 12 read both Business World and Business Today. If 5 managers read all three newspapers, then how many managers read only one newspaper?
  • a)
    25
  • b)
    35
  • c)
    32
  • d)
    42
Correct answer is option 'C'. Can you explain this answer?
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In a survey conducted among 60 managers, it was found that 25 read Bus...
Given Information:
- Total number of managers surveyed = 60
- Number of managers who read Business India = 25
- Number of managers who read Business World = 30
- Number of managers who read Business Today = 24
- Number of managers who read both Business India and Business World = 10
- Number of managers who read both Business India and Business Today = 9
- Number of managers who read both Business World and Business Today = 12
- Number of managers who read all three newspapers = 5

Approach:
To find the number of managers who read only one newspaper, we need to subtract the number of managers who read more than one newspaper from the total number of managers who read each newspaper.

Solution:
Let's solve this problem step by step.

Step 1: Find the number of managers who read only one newspaper.

To find the number of managers who read only one newspaper, we need to subtract the number of managers who read more than one newspaper from the total number of managers who read each newspaper.

Number of managers who read only Business India = Number of managers who read Business India - Number of managers who read both Business India and Business World - Number of managers who read both Business India and Business Today + Number of managers who read all three newspapers
= 25 - 10 - 9 + 5
= 11

Number of managers who read only Business World = Number of managers who read Business World - Number of managers who read both Business India and Business World - Number of managers who read both Business World and Business Today + Number of managers who read all three newspapers
= 30 - 10 - 12 + 5
= 13

Number of managers who read only Business Today = Number of managers who read Business Today - Number of managers who read both Business India and Business Today - Number of managers who read both Business World and Business Today + Number of managers who read all three newspapers
= 24 - 9 - 12 + 5
= 8

Step 2: Find the total number of managers who read only one newspaper.

Total number of managers who read only one newspaper = Number of managers who read only Business India + Number of managers who read only Business World + Number of managers who read only Business Today
= 11 + 13 + 8
= 32

Therefore, the number of managers who read only one newspaper is 32.

Hence, the correct answer is option C.
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A survey was conducted among 1050 members of a locality. There were asked about the newspaper they read among Hindu, TOI and IE. Some of the results of the survey have been tabulated as under.It is also known that:I) The number of women who read only Hindu and IE is equal to the number of women who read only Hindi and TOI.II) 20% of the people surveyed read all the three newspapers. The number of people who read exactly two newspaper is thrice the number of men who read all the three newspapers.III) The number of women who read only Hindu is equal to the number of men who read only TOI and IE. The number of women surveyed is 150 less than the number of men surveyed.IV) An equal number of women read TOI and IE. 495 people read Hindu and 435 people do not read IE. 10% of men read none of the newspapers.How many people read exactly one newspaper? Correct answer is '465'. Can you explain this answer?

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In a survey conducted among 60 managers, it was found that 25 read Business India, 30 read Business World and 24 read Business Today; 10 read both Business India and Business World, 9 read both Business India and Business Today and 12 read both Business World and Business Today. If 5 managers read all three newspapers, then how many managers read only one newspaper?a)25b)35c)32d)42Correct answer is option 'C'. Can you explain this answer?
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